Eufy RoboVac G40+ Review (2026)

Why you should trust this review

Our team bought this robot at full retail. Eufy had no advance copy of this review and no say in what it concludes. I cover home appliances and floor care, and the G40+ ran in the same test home, on the same floors, that I use to evaluate other robots, so I can speak to how it stacks up against its direct rivals rather than reviewing it in isolation.

Over five months it ran roughly five cleanings a week across a real lived-in home, picking up actual daily debris rather than a single staged test and then a verdict. Everything below comes from that long stretch of ordinary use, including the parts the spec sheet glosses over.

How we evaluated

I ran the G40+ on my standard budget robot protocol, well past the minimum window, for around 170 hours over five months. For pickup, I weighed out measured amounts of mixed debris on both hardwood and low pile carpet, ran the robot, and weighed what it captured to get a real percentage rather than a guess.

I counted missed strips across a full run of the home to score coverage. I timed the battery to depletion in standard mode on hardwood to check the runtime claim. I tracked how many days the self-empty dock ran before the bag needed swapping. And across the five months I logged durability, noting any part replacements, battery fade, dock failures, or app and firmware problems as they happened.

Pickup performance on floors

The weighed pickup numbers were the most important result, and they were genuinely good for a budget machine. On hardwood the G40+ captured the large majority of the measured debris, and on low pile carpet it gave up only a little ground from that. Those are numbers I would happily live with as a daily maintenance clean, especially given the price tier.

The reason it does well on carpet is the suction boost feature, which ramps power up within about a second of the robot rolling onto a rug. That responsiveness was noticeably quicker than older models I have used, where the boost lagged or never quite kicked in. For a home that is mostly hardwood with some low pile carpet, the 2,500 Pa peak is enough to keep both surfaces genuinely clean between deeper manual sweeps.

Navigation: where the budget shows

Navigation is the clearest place the price reveals itself, and I want to be honest about it. The G40+ uses gyroscope-based path planning rather than laser mapping. That is a real step up from the old random-bounce robots, and most of the time it moves in tidy, straight overlapping lanes that cover the floor methodically. Across my large test home it scored high on overall coverage.

But it consistently missed a couple of edges per run, the kind of corners and along-the-baseboard spots that a laser-mapping robot catches. It is not a dealbreaker if you sweep weekly anyway, and in open rooms it does fine. In a heavily cluttered floor plan, though, the gyroscope navigation will struggle more, leave more gaps, and occasionally get itself into awkward spots. If your home is busy with obstacles, that limitation is worth taking seriously.

Battery and runtime

The runtime held up close to the claim. In standard mode on hardwood I measured a real, useful battery life only slightly short of the rated figure, which is honest performance and enough to cover a sizable home on a single charge. When the carpet boost is working hard, that runtime drops considerably, which is expected since the higher suction draws more power.

For most homes that single-charge runtime is plenty, and the robot returns to the dock to recharge when it runs low. The practical takeaway is that you are getting genuine, all-area coverage per cycle rather than a robot that taps out halfway through and leaves the back half of the house for tomorrow.

Dock automation and long term durability

The self-empty dock is the headline feature and the main reason to buy this over a cheaper plain robot, and it delivered. In my home it ran for weeks between bag swaps, which is the real quality-of-life win, you genuinely stop thinking about the robot’s bin. The one honest complaint is noise: the self-empty cycle is loud while it runs, so you will hear it fire off, though it only lasts a short burst.

On durability over five months, the picture is reassuring. I replaced the brushroll once around month four, which is normal wear on any robot. The battery shows only minor degradation from where it started, well within what I would expect. The dock self-empty cycle still works on every test, and there were no firmware bricks or app crashes across the whole five months. That is a solid reliability record for the price.

Who should buy the G40+?

Buy it if you want the convenience of a self-emptying robot but cannot stretch to a flagship, if your home is mostly hardwood or low pile carpet where the suction is plenty, and if you do not need mopping or laser mapping. For that profile it is excellent value.

Skip it if you want a single machine that both vacuums and mops, since this is vacuum only. Skip it too if you have a heavily cluttered floor plan where the gyroscope navigation will miss too much, or if you specifically want a small-footprint robot for a tiny apartment, where a more compact model fits better.

The verdict

The Eufy RoboVac G40+ is the cheapest self-emptying robot I would still trust, and after five months of real use it has earned that. The weighed pickup numbers are genuinely good, the runtime is close to the claim, and the self-empty dock ran for weeks at a time and held up reliably with only routine maintenance. You are trading away laser mapping and any mopping, and the navigation will leave a few edges in cluttered rooms. But for a mostly hardwood home where the self-empty convenience is the whole point, it delivers most of a flagship’s everyday value for a fraction of the cost.